Who can cancel a fuel sample procedure?

The procedure for canceling a fuel sample is typically limited to qualified aircrew members, as they have the appropriate training and responsibility for the aircraft's operation and maintenance. Qualified aircrew members are knowledgeable about the fuel sampling processes and their implications for flight safety, which gives them the authority to make decisions regarding these procedures.

Aircraft fuel samples are critical in ensuring that only clean and uncontaminated fuel is used in operations. If an aircrew member identifies any reason to cancel the procedure—such as an anomaly in the sampling process or conditions that deem it unnecessary—they can act accordingly to mitigate potential risks.

In contrast, while other personnel may play supportive roles or assist in fueling procedures, they do not possess the specialized training or authority to make such decisions regarding the cancellation of the fuel sampling process. Only qualified aircrew members have the expertise and responsibility needed to ensure the safety and readiness of the aircraft in this context.